CN103035392A - Voltage transformer provided with carrier communication interface - Google Patents

Voltage transformer provided with carrier communication interface Download PDF

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Publication number
CN103035392A
CN103035392A CN2012105755827A CN201210575582A CN103035392A CN 103035392 A CN103035392 A CN 103035392A CN 2012105755827 A CN2012105755827 A CN 2012105755827A CN 201210575582 A CN201210575582 A CN 201210575582A CN 103035392 A CN103035392 A CN 103035392A
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China
Prior art keywords
carrier communication
voltage transformer
links
coupler
communication device
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CN2012105755827A
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Chinese (zh)
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CN103035392B (en
Inventor
朱启贵
王佳颖
周惠巍
牟宪民
李美芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Attached Senior Middle School Of Dalian University Of Technology
Electric Power Research Institute Of Jilin Electric Power Co
Dalian University of Technology
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Jilin Electric Power Co Ltd
Original Assignee
Electric Power Research Institute Of Jilin Electric Power Co
Dalian University of Technology
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Jilin Electric Power Co Ltd
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Application filed by Electric Power Research Institute Of Jilin Electric Power Co, Dalian University of Technology, State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Jilin Electric Power Co Ltd filed Critical Electric Power Research Institute Of Jilin Electric Power Co
Priority to CN201210575582.7A priority Critical patent/CN103035392B/en
Publication of CN103035392A publication Critical patent/CN103035392A/en
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Publication of CN103035392B publication Critical patent/CN103035392B/en
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Abstract

The invention relates to a voltage transformer provided with a carrier communication interface. The voltage transformer comprises a voltage transformer body (2), wherein carrier communication devices (3) are arranged on one or two high-voltage insulating sleeves (1) of the voltage transformer body (2); each carrier communication device (2) consists of a coupler (4), a carrier communication module (5) and an alternating current to direct current conversion module (6); two alternating current input ends of the coupling direct current to alternating current conversion power supply module (6) are connected with the two ends of the secondary side of the voltage transformer respectively; and the two direct-current output ends of the coupling direct current to alternating current conversion power supply module (6) are connected with the power supply input end of each carrier communication module (5). Due to the adoption of the voltage transformer, a carrier wave communication device is not required to be charged separately by using an external power supply; and the voltage transformer is simple in structure, and contributes to saving the installation cost and lowering the complexity of a device. A coupler and a carrier communication module are designed in a carrier communication device and are arranged on a high-voltage insulating sleeve of the voltage transformer, so that the system structure is simplified, and space is saved.

Description

Voltage transformer with carrier communication interface
Technical field
The present invention relates to power equipment, be specifically related to a kind of voltage transformer.
Background technology
Power line carrier, PLC is to utilize high voltage power transmission as the carrier communication mode of transmission channel, is used for dispatching communication, telemechanical, protection, production commander, administrative service communication and the various communication of electric power system.
Power line carrier, PLC is made of power line carrier, power line, Coupling device, and Coupling device comprises line trap, filter joint, coupling capacitor, high frequency cable etc.Coupled modes have phase-ground coupling, phase-be coupled, hybrid coupled etc., and wherein coupling capacitor is to be connected between filter joint and the high-voltage conducting wires, and it is high voltage bearing porcelain vase oil-paper Jie insulation electric capacity, and its capacity is different with the difference of electric pressure.The effect of coupling capacitor is that the high voltage on carrier equipment and the power line, switching overvoltage and lightning overvoltage etc. are kept apart, and prevents that high voltage from entering communication equipment, and high-frequency carrier signal can successfully be coupled on the high-voltage circuit.At present in the power carrier communication in the 10KV voltage transformer, coupling capacitor is received on the power line by the mode of phase-ground coupling, and carrier communication module needs external power supply to power separately, complex structure, so both increase installation cost, increased again the complexity of device.
Summary of the invention
The purpose of this invention is to provide a kind of carrier communication device do not need external power supply power separately, simple in structure, save installation cost, can reduce the voltage transformer with carrier communication interface of the complexity of device.
Technical solution of the present invention is: it comprises that the two ends of primary side are respectively equipped with the voltage transformer device body of high-tension insulating bushing, on 1 of voltage transformer device body or 2 high-tension insulating bushings carrier communication device is installed, carrier communication device is by coupler, carrier communication module and the straight conversion electric power module composition of friendship, two HV Terminal of coupler link to each other with an end of the primary side of voltage transformer phase-connecting wire and the iron core of voltage transformer respectively, two low-voltage terminals of coupler link to each other with the signal input output end of carrier communication module respectively, hand over two ac input ends of straight conversion electric power module to link to each other with the two ends of voltage transformer secondary side respectively, two dc output ends link to each other with the power input of carrier communication module respectively.
Technique effect of the present invention is: use its carrier communication device not need external power supply to power separately, and simple in structure, save installation cost, can reduce the complexity of device.It just the design of coupler and carrier communication module simplified system configuration in carrier communication device and be installed on the high-tension insulating bushing of voltage transformer, saved the space.Carrier communication device is converted to direct current from the voltage transformer secondary side sampling through simple electrical energy changer, for carrier communication device provides power supply, has simplified the inconvenience that external power supply is powered and brought separately.Have and connect advantage reliable, simple in structure.
Description of drawings
Fig. 1 is embodiment of the invention circuit theory diagrams;
Fig. 2 is embodiment of the invention structural representation;
Fig. 3 is embodiment of the invention carrier communication module structured flowchart;
Fig. 4 is embodiment of the invention carrier communication device mounting structure schematic diagram.
Embodiment
Such as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, it comprises that the two ends of primary side are respectively equipped with the voltage transformer device body 2 of high-tension insulating bushing 1, on 1 of voltage transformer device body 2 or 2 high-tension insulating bushings 1 carrier communication device 3 is installed, carrier communication device 3 is by coupler 4, the straight conversion electric power module 6 of carrier communication module 5 and friendship consists of, two HV Terminal of coupler 4 link to each other with an end of the primary side of voltage transformer phase-connecting wire and the iron core 21 of voltage transformer respectively, two low-voltage terminals of coupler 4 link to each other with the signal input output end of carrier communication module 5 respectively, hand over two ac input ends of straight conversion electric power module 6 to link to each other with the two ends of voltage transformer secondary side respectively, two dc output ends link to each other with the power input of carrier communication module 5 respectively.
Coupler 4 is made of coupling capacitance 41 and coupling transformer 42, coupling capacitance 41 is in series with coupling transformer 42 primary sides, the other end of coupling capacitance 41 links to each other with an end of voltage transformer phase-connecting wire primary side, the other end of coupling transformer 42 primary sides links to each other with the iron core 21 of voltage transformer, and two low-voltage terminals of coupling transformer 42 link to each other with the signal input output end of carrier communication module 5 respectively.
1 of voltage transformer device body 2 or 2 high-tension insulating bushings 1 are provided with carrier communication device mounting groove 11, be provided with the stationary contact first 12 that links to each other with the primary side of voltage transformer phase-connecting wire in the carrier communication device mounting groove 11, the fixed contact 2 13 that links to each other respectively with the two ends of voltage transformer secondary side, fixed contact 3 14 and the fixed contact 4 15 that links to each other with the iron core 21 of voltage transformer, carrier communication device 3 is provided with respectively and stationary contact first 12, fixed contact 2 13,31, four moving contacts 31 of four moving contacts that fixed contact 3 14 links to each other with fixed contact 4 15 are made of the elastic conducting strip that an end is fixed on the carrier communication device 3 respectively.Carrier communication device 3 is the block body of rectangle, and the position at its four angles is respectively equipped with installs dop 33, and the position at four angles of carrier communication device mounting groove 11 is respectively equipped with each the locating groove 16 that dop 33 matches is installed.Carrier communication device 3 is positioned at the outside when being installed on the high-tension insulating bushing 1 face is provided with installation handle 32.
Carrier communication module 3 is by central processing unit 34, modulator 35, amplifier 36, demodulator 37, filter 38 and communication interface 39 consist of, communication interface 39 links to each other with central processing unit 34 and is used for the input and output communication signal, modulator 35 links to each other with central processing unit 34 and is used for doing modulation treatment from the next communication signal of central processing unit 34 transmission, amplifier 36 and modulator 35 and coupler 4 link to each other respectively and are used for the signal after the modulation treatment being amplified and transferring to coupler 4, filter 38 links to each other respectively with coupler 4 and demodulator 37 and is used for carrying out filtering and transfer to demodulator 37 from the next signal of coupler 4 transmission, demodulator 37 links to each other with central processing unit 34 and is used for handing over dc output end and the central processing unit 34 of straight conversion electric power module 6 to carrying out demodulation process and be transferred to central processing unit 34 from the next signal of filter 38 transmission, modulator 35, amplifier 36, demodulator 37, filter 38 and communication interface 39 are connected to respectively it DC power supply are provided.
Voltage transformer device body 2 is made of iron core 21, housing 22, primary winding 23, secondary coil 24 and two high-tension insulating bushings 1, primary winding 23 and secondary coil 24 are coupled and are installed on the iron core 21, two high-tension insulating bushings 1 are set on the two ends of primary winding 23 and are fixing upper on housing 22, and the two ends of secondary coil 24 are connected on two binding posts 25 being located on the housing 22.
Using method of the present invention is as follows:
Package unit design of the present invention is except surface and high-pressure insulating ring tube shape coincide, and other face is the plane, similar cuboid.In use, by being installed, handle carrier communication device can be pushed in the high-tension insulating bushing.The 10KV power transmission line is by in the access device of top, and carrier communication optical fiber is drawn from side, and the earth connection of coupling capacitor and capacitor mutual-inductor secondary access by the bottom respectively.If need to change or maintenance, pull out device by handle and get final product.
Advantage of the present invention is:
1, utilize the voltage transformer secondary to be the power carrier communication module for power supply.
2, coupler, the straight conversion electric power module of friendship and carrier communication module are designed in the same device, can be installed to instrument transformer high-tension insulating bushing inside simultaneously, simplified the complexity of package unit, substantially keep in appearance the original appearance of voltage transformer.
3, redesigned shape and the wiring lead-out wire of high-tension insulating bushing, it is inner to make carrier communication device well be fixed to the voltage transformer insulating sleeve, and the handle on the carrier communication device can conveniently take out and install package unit.

Claims (7)

1. the voltage transformer that has the carrier communication interface, it comprises that the two ends of primary side are respectively equipped with the voltage transformer device body (2) of high-tension insulating bushing (1), it is characterized in that: on 1 of voltage transformer device body (2) or 2 high-tension insulating bushings (1) carrier communication device (3) is installed, carrier communication device (3) is by coupler (4), carrier communication module (5) and the straight conversion electric power module of friendship (6) consist of, two HV Terminal of coupler (4) link to each other with an end of the primary side of voltage transformer phase-connecting wire and the iron core (21) of voltage transformer respectively, two low-voltage terminals of coupler (4) link to each other with the signal input output end of carrier communication module (5) respectively, hand over two ac input ends of straight conversion electric power module (6) to link to each other with the two ends of voltage transformer secondary side respectively, two dc output ends link to each other with the power input of carrier communication module (5) respectively.
2. the voltage transformer with carrier communication interface as claimed in claim 1, it is characterized in that described coupler (4) is made of coupling capacitance (41) and coupling transformer (42), coupling capacitance (41) is in series with coupling transformer (42) primary side, the other end of coupling capacitance (41) links to each other with an end of voltage transformer phase-connecting wire primary side, the other end of coupling transformer (42) primary side links to each other with the iron core (21) of voltage transformer, and two low-voltage terminals of coupling transformer (42) link to each other with the signal input output end of carrier communication module (5) respectively.
3. the voltage transformer with carrier communication interface as claimed in claim 1, it is characterized in that 1 of described voltage transformer device body (2) or 2 high-tension insulating bushings (1) are provided with carrier communication device mounting groove (11), be provided with the stationary contact that links to each other with the primary side of voltage transformer phase-connecting wire first (12) in the carrier communication device mounting groove (11), the fixed contact two (13) that links to each other respectively with the two ends of voltage transformer secondary side, fixed contact three (14) and the fixed contact four (15) that links to each other with the iron core (21) of voltage transformer, carrier communication device (3) is provided with respectively and stationary contact first (12), fixed contact two (13), four moving contacts (31) that fixed contact three (14) links to each other with fixed contact four (15), four moving contacts (31) are made of the elastic conducting strip that an end is fixed on the carrier communication device (3) respectively.
4. the voltage transformer with carrier communication interface as claimed in claim 3, it is characterized in that described carrier communication device (3) is the block body of rectangle, the position at its four angles is respectively equipped with installs dop (33), and the position at four angles of carrier communication device mounting groove (11) is respectively equipped with each the locating groove (16) that dop (33) matches is installed.
5. the voltage transformer with carrier communication interface as claimed in claim 1 is characterized in that described carrier communication device (3) is installed in the face that is positioned at the outside when high-tension insulating bushing (1) is gone up and is provided with installation handle (32).
6. the voltage transformer with carrier communication interface as claimed in claim 1, it is characterized in that described carrier communication module (3) is by central processing unit (34), modulator (35), amplifier (36), demodulator (37), filter (38) and communication interface (39) consist of, communication interface (39) links to each other with central processing unit (34) and is used for the input and output communication signal, modulator (35) links to each other with central processing unit (34) and is used for doing modulation treatment from the next communication signal of central processing unit (34) transmission, amplifier (36) and modulator (35) and coupler (4) link to each other respectively and are used for the signal after the modulation treatment being amplified and transferring to coupler (4), filter (38) links to each other respectively with coupler (4) and demodulator (37) and is used for carrying out filtering and transfer to demodulator (37) from the next signal of coupler (4) transmission, demodulator (37) links to each other with central processing unit (34) and is used for handing over dc output end and the central processing unit (34) of straight conversion electric power module (6) to carrying out demodulation process and be transferred to central processing unit (34) from the next signal of filter (38) transmission, modulator (35), amplifier (36), demodulator (37), filter (38) and communication interface (39) are connected to respectively it provides DC power supply.
7. the voltage transformer with carrier communication interface as claimed in claim 1, it is characterized in that described voltage transformer device body (2) is by iron core (21), housing (22), primary winding (23), secondary coil (24) and two high-tension insulating bushings (1) consist of, primary winding (23) and secondary coil (24) are coupled and are installed on the iron core (21), two high-tension insulating bushings (1) are set on the two ends of primary winding (23) and are fixing upper on housing (22), and the two ends of secondary coil (24) are connected on two binding posts (25) of being located on the housing (22).
CN201210575582.7A 2012-12-27 2012-12-27 There is the voltage transformer of carrier communication interface Active CN103035392B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105004917A (en) * 2014-04-16 2015-10-28 西安邮电大学 GNSS ammeter key circuit, and method for time calibration of digital ammeter end through the same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016429A (en) * 1976-01-16 1977-04-05 Westinghouse Electric Corporation Power line carrier communication system for signaling customer locations through ground wire conductors
US20080077336A1 (en) * 2006-09-25 2008-03-27 Roosevelt Fernandes Power line universal monitor
CN101373906A (en) * 2008-10-24 2009-02-25 华北电力大学(保定) Test control module for power distribution network carrier communication
CN201594823U (en) * 2009-07-22 2010-09-29 冯汉春 Power line carrier communication device
US20100318238A1 (en) * 2009-06-12 2010-12-16 Bryson Michael B Voltage Regulation Using A Remote Metering Device
CN201830516U (en) * 2010-09-26 2011-05-11 石家庄合辐节能科技有限公司 Control circuit of light emitting diode (LED) street lamp capable of being regulated and controlled remotely based on electric carrier communication
CN202977156U (en) * 2012-12-27 2013-06-05 吉林省电力有限公司电力科学研究院 Voltage transformer with carrier wave communication interface

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016429A (en) * 1976-01-16 1977-04-05 Westinghouse Electric Corporation Power line carrier communication system for signaling customer locations through ground wire conductors
US20080077336A1 (en) * 2006-09-25 2008-03-27 Roosevelt Fernandes Power line universal monitor
CN101373906A (en) * 2008-10-24 2009-02-25 华北电力大学(保定) Test control module for power distribution network carrier communication
US20100318238A1 (en) * 2009-06-12 2010-12-16 Bryson Michael B Voltage Regulation Using A Remote Metering Device
CN201594823U (en) * 2009-07-22 2010-09-29 冯汉春 Power line carrier communication device
CN201830516U (en) * 2010-09-26 2011-05-11 石家庄合辐节能科技有限公司 Control circuit of light emitting diode (LED) street lamp capable of being regulated and controlled remotely based on electric carrier communication
CN202977156U (en) * 2012-12-27 2013-06-05 吉林省电力有限公司电力科学研究院 Voltage transformer with carrier wave communication interface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105004917A (en) * 2014-04-16 2015-10-28 西安邮电大学 GNSS ammeter key circuit, and method for time calibration of digital ammeter end through the same

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Owner name: JILIN ACADEMY OF ELECTRIC POWER SCIENCE DALIAN UNI

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Effective date: 20150420

C41 Transfer of patent application or patent right or utility model
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Inventor after: Li Zongze

Inventor after: Zhu Qigui

Inventor after: Wang Jiaying

Inventor after: Mou Xianmin

Inventor after: Li Meifang

Inventor before: Zhu Qigui

Inventor before: Wang Jiaying

Inventor before: Zhou Huiwei

Inventor before: Mou Xianmin

Inventor before: Li Meifang

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Free format text: CORRECT: INVENTOR; FROM: ZHU QIGUI WANG JIAYING ZHOU HUIWEI MOU XIANMIN LI MEIFANG TO: LI ZONGZE ZHU QIGUI WANG JIAYING MOU XIANMIN LI MEIFANG

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Address after: 130021 Changchun City, Chaoyang District province people's street, No. 4433, No.

Applicant after: Electric Power Research Institute of Jilin Electric Power Company

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Applicant after: Dalian University of Technology

Applicant after: State Grid Corporation of China

Applicant after: Attached senior middle school of Dalian University of Technology

Address before: 130021 Changchun City, Chaoyang District province people's street, No. 4433, No.

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